CVSS 3.1
4.7 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:NCVE-2024-21641
Medium (4.7) in flarum flarum. EPSS 1.1% chance of exploitation in the next 30 days.
Flarum is open source discussion platform software. Prior to version 1.8.5, the Flarum `/logout` route includes a redirect parameter that allows any third party to redirect users from a (trusted) domain of the Flarum installation to redirect to any link. For logged-in users, the logout must be confirmed. Guests are immediately redirected. This could be used by spammers to redirect to a web address using a trusted domain of a running Flarum installation. The vulnerability has been fixed and published as flarum/core v1.8.5. As a workaround, some extensions modifying the logout route can remedy this issue if their implementation is safe.
Severity
- EPSS
- 1.1% chance of exploitation in the next 30 days; higher than 64% of CVEs (scores of 2026-10-31)
- CWE
- CWE-601
- Published
- Modified
- Record from
- the NVD, synced
Affected
- flarum:flarum
References
- https://github.com/flarum/flarum-core/commit/ee8b3b4ad1413a2b0971fdd9e40f812d2a3a9d3a
- https://github.com/flarum/framework/commit/7d70328471cf3091d92d95c382d277aec7996176
- https://github.com/flarum/framework/security/advisories/GHSA-733r-8xcp-w9mr
- https://github.com/flarum/flarum-core/commit/ee8b3b4ad1413a2b0971fdd9e40f812d2a3a9d3a
- https://github.com/flarum/framework/commit/7d70328471cf3091d92d95c382d277aec7996176